Senior Full-Stack Software Engineer

This is a fully remote position, open to applicants in Brazil.

📋 Description

• Oversee client projects from the initial scoping conversation through to production.

• Adhere to the Spec-Driven workflow: gather context, specify, plan, implement with AI agents, review, and finalize.

• Convert business challenges into technical designs and actionable, verifiable specifications for AI agents.

• Collaborate with the PM, designer, and squad to determine project requirements.

• Receive directives directly from founders or clients in the absence of a PM.

• Engage in client discussions regarding objectives, scope, and technical compromises.

• Provide written updates to clients.

• Direct AI agents such as Claude Code and Cursor.

• Evaluate agent outputs through automated loops and independent assessments of architecture and behavior.

• Take complete ownership of the work delivered.

• Make decisions regarding architecture.

• Deliver, iterate, and document decisions along with edge cases within the project framework.

• Utilize and continuously enhance the shared repository of skills, agents, and review processes.

• Share enhancements that benefit all squads.

• Operate in accordance with each client’s AI usage policies.

⛳️ Requirements

• Proven experience in building and delivering comprehensive software products from start to finish.

• Proficient in JavaScript/TypeScript and/or Python.

• Daily utilization of AI agents for design, development, debugging, and research tasks.

• Ability to transform ambiguity into structured, testable specifications.

• Full-stack mindset, capable of working across backend, frontend, AI, and product domains.

• Skill in verifying deliverables and clearly communicating what has and has not been verified.

• High level of autonomy, minimal bureaucracy, and adaptability to rapid feedback cycles.

• Valid business registration in the country of residence (CNPJ, VAT, EIN, or equivalent).

• Bank account that can receive payments in USD.

• Capability to issue invoices or equivalent documentation.

• English proficiency is not explicitly stated in the posting; the application form requests applicants to indicate their English level.

• Compliance with each client’s AI usage policies, Brazil’s LGPD, and other relevant data protection laws.

🏝️ Benefits

• Hourly compensation in USD.

• Fully remote work environment.

• Flexible allocation based on project availability and compatibility.

• Opportunities with diverse durations, scopes, and weekly commitments.

• Access to approved enterprise AI tools.

• Support from an Engineering Manager and squad as required.